摘要
采用硫酸和盐酸混酸(以下简称混酸)的改性粉煤灰吸附罗丹明B模拟废水,研究了它的投入量、吸附时间、温度及溶液pH值对罗丹明B模拟废水脱色率的影响.研究表明,对相同体积2 mg/L的罗丹明B模拟废水,在60℃下,加入混酸改性粉煤灰0.19 g,pH值调节为1.05,搅拌时间为40 min时,其吸附效果最佳.脱色率可提高到98.74%.
Rhodamine B as model wastewater is absorbed by sulfuric acid and hydrochloric acid mixed acid-modified fly ash. The influences of decolorization rate such as the quantity of modified fly ash, the adsorption time, the temperature and Ph value of aqueous solution are studied. The results indicates that the optimal condition of modified fly ash is that the adsorption temperature is 60℃ ,the quantity of acid-modified fly ash is 0.19g,pH is 1.05,and the adsorption time is 40 min for model dye-printing wastewater for 2mg/L. The adsorption become easy and the decolorization rate is up to 98.74% when the modified fly ash is used.
出处
《晋中学院学报》
2013年第3期36-39,71,共4页
Journal of Jinzhong University
关键词
混酸改性粉煤灰
脱色率
罗丹明B
mixed acid-modified fly ash
decolorization rate
Rhodamine B
